可以通过下载手机营业厅来查询。
具体操作方法：
1、打开手机，找到手机商店（以手机联通为例），在搜索栏里搜索手机营业厅下载。
/iknow-pic.cdn.bcebos.com/9922720e0cf3d7caa9006a4efd1fbe096b63a910"target="_blank"title="点击查看大图"class="ikqb_img_alink">/iknow-pic.cdn.bcebos.com/9922720e0cf3d7caa9006a4efd1fbe096b63a910?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto"esrc="
https://iknow-pic.cdn.bcebos.com/9922720e0cf3d7caa9006a4efd1fbe096b63a910"/>
2、下载好安装到手机上面，并点击进入。
/iknow-pic.cdn.bcebos.com/3b87e950352ac65ce1cd334bf4f2b21193138a3a"target="_blank"title="点击查看大图"class="ikqb_img_alink">/iknow-pic.cdn.bcebos.com/3b87e950352ac65ce1cd334bf4f2b21193138a3a?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto"esrc="
https://iknow-pic.cdn.bcebos.com/3b87e950352ac65ce1cd334bf4f2b21193138a3a"/>
3、根据要求注册登录进入，然后点击界面下方的我的选项。
/iknow-pic.cdn.bcebos.com/8601a18b87d6277f392d670027381f30e924fccf"target="_blank"title="点击查看大图"class="ikqb_img_alink">/iknow-pic.cdn.bcebos.com/8601a18b87d6277f392d670027381f30e924fccf?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto"esrc="
https://iknow-pic.cdn.bcebos.com/8601a18b87d6277f392d670027381f30e924fccf"/>
4、在我的业务下方选择我的基本信息。
/iknow-pic.cdn.bcebos.com/9825bc315c6034a872b8ecb9c4134954092376ab"target="_blank"title="点击查看大图"class="ikqb_img_alink">/iknow-pic.cdn.bcebos.com/9825bc315c6034a872b8ecb9c4134954092376ab?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto"esrc="
https://iknow-pic.cdn.bcebos.com/9825bc315c6034a872b8ecb9c4134954092376ab"/>
5、在我的信息里面就可以看见手机的入网时间，从而就可以得知自己手机号码的使用年龄了。
/iknow-pic.cdn.bcebos.com/9f510fb30f2442a7a39a979dde43ad4bd1130275"target="_blank"title="点击查看大图"class="ikqb_img_alink">/iknow-pic.cdn.bcebos.com/9f510fb30f2442a7a39a979dde43ad4bd1130275?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto"esrc="
https://iknow-pic.cdn.bcebos.com/9f510fb30f2442a7a39a979dde43ad4bd1130275"/>